Shuttle's barebone is now bundled with
Windows 8.1 with Bing (upgradable to Windows 10). The XS 3500BB V4 features a quad-core Celeron J1900, 2GB of DDR3L and a 32 GB SSD for 287 euros (ex VAT). That's very convenient, yet crippled if you ask us. Nothing beats choosing every component, and building your own dream machine.
Source:
Shuttle